FIELD: chemistry.
SUBSTANCE: method essence lies in joint isolation of metals from water solutions by processing initial water solution with solution of complex-former of formula 
, where R=alkyl radical - propyl, ethyl, R'=propyl, at higher temperature, or with introduction of concentrated nitric acid, and further separation of metal complexes in form of sediment.
EFFECT: joint extraction of metals from water solutions with high percentage of isolation.
2 cl, 7 ex, 6 tbl
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